Autor(en): | Dardaei Joghan, Hamed Hahn, Marlon Tekkaya, A. Erman |
Titel: | Effect of preheating during laser metal deposition on the properties of laminated bending dies |
Sprache (ISO): | en |
Zusammenfassung: | Metal-laminated tooling provides a fast and cheap manufacturing concept. In this study, laser metal deposition (LMD) is used for reducing and eliminating the stair step effect in a metal-laminated bending die. Preheating could decrease the undesired residual stresses in additive manufacturing, thus a systematical analysis of the effect of preheating of the laminae on the surface quality and mechanical properties of the bending die is performed. Ferritic steel sheets (S355 MC) with a thickness of 2 mm are laser cut and stacked up to manufacture the laminated bending die with a radius of 6 mm. The sheets are joined and the stair steps are filled with LMD with stainless steel powder 316L-Si. The initial temperature of the tool sheets (substrates), beside room temperature, is elevated up to 300 °C. The effect of the preheating on the surface roughness, shape deviation, hardness, and residual stresses of the die are investigated. The mean height of the surface increases by 59% at elevated temperatures. However, the tensile residual stress parallel to the weld direction at the middle of the deposited area decreases only around 25%. The functionality of the forming tools manufactured by this method is proven by bending of DC06 and HC380LA sheets. |
Schlagwörter: | Additive manufacturing Laser metal deposition Laminated tooling Rapid prototyping Sheet metal forming Surface roughness |
Schlagwörter (RSWK): | Rapid Prototyping <Fertigung> Laserschweißen Auftragsschweißen Blechumformen Rauigkeit |
URI: | http://hdl.handle.net/2003/41358 http://dx.doi.org/10.17877/DE290R-23201 |
Erscheinungsdatum: | 2022-12-22 |
Rechte (Link): | https://creativecommons.org/licenses/by/4.0/ |
Enthalten in den Sammlungen: | Sonstige Veröffentlichungen |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
s00170-022-10697-z.pdf | DNB | 4.22 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource ist urheberrechtlich geschützt. |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons